When sand goes in everywhere it isn't pleasant! Neither are our seasons of waiting. The Israelites knew what it was like to wander around in the desert for many years. Would they have still followed God's call to leave Egypt if they knew they would never get to live in the Promised Land? Rather that it would instead be the next generations who would. In life when God calls us to build for Him we are not guaranteed that we will see the end or reap the benefits but as we place our trust in Him we can hope in what He will do through us.